Home / 5,118.40-7,684.62-2,654.92

Finding the Fourth Proportional to 5,118.40, 7,684.62 and 2,654.92

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Solution

The fourth proportional to 5,118.40, 7,684.62 and 2,654.92 is: 3,986.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.40 : 7,684.62 = 2,654.92 : x
  2. Step 2: Convert to fraction form
    5,118.40/7,684.62 = 2,654.92/x
  3. Step 3: Cross multiply
    5,118.40x = 7,684.62 × 2,654.92
  4. Step 4: Simplify right side
    5,118.40x = 20,402,051.33
  5. Step 5: Solve for x
    x = 20,402,051.33/5,118.40
  6. Step 6: Final answer
    x = 3,986.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.